2768765 has 8 divisors (see below), whose sum is σ = 3429888. Its totient is φ = 2143440.

The previous prime is 2768683. The next prime is 2768767. The reversal of 2768765 is 5678672.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2768765 - 2²⁰ = 1720189 is a prime.

It is a d-powerful number, because it can be written as 2 + 7⁵ + 6⁷ + 8⁷ + 7⁵ + 6⁷ + 5⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2768767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8777 + ... + 9086.

It is an arithmetic number, because the mean of its divisors is an integer number (428736).

2^2768765 is an apocalyptic number.

It is an amenable number.

2768765 is a deficient number, since it is larger than the sum of its proper divisors (661123).

2768765 is a wasteful number, since it uses less digits than its factorization.

2768765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17899.

The product of its digits is 141120, while the sum is 41.

The square root of 2768765 is about 1663.9606365536. The cubic root of 2768765 is about 140.4199127337.

The spelling of 2768765 in words is "two million, seven hundred sixty-eight thousand, seven hundred sixty-five".